| Year | Month | Dividend (%) |
|---|---|---|
| 2017 | May | 250 |
| 2016 | Mar | 200 |
| 2015 | May | 200 |
| 2014 | May | 200 |
| 2013 | May | 75 |
| 2013 | Feb | 125 |
| 2012 | May | 100 |
| 2011 | May | 200 |
| 2010 | May | 200 |
| 2009 | May | 125 |
| 2008 | May | 125 |
| 2007 | Mar | 100 |
| 2006 | May | 50 |
| 2005 | May | 50 |
| 2004 | May | 100 |
| 2003 | May | 25 |
| 2002 | May | 10 |
| 2000 | May | 25 |
| 1999 | Aug | 25 |
| 1999 | Jan | - |
| 1997 | Aug | 50 |